Image processing device, method, and program

Abstract

An image processing device is described herein including an information input unit that receives as an input three-dimensional structure information indicating a three-dimensional structure of a heart; and an image generation unit that develops an inner wall of atria and ventricles of the heart indicated by the three-dimensional structure information into a two-dimensional image based on an equal-area projection and generates a developed image interrupted by dividing the two-dimensional image into a front wall, a rear wall, a left wall, and a right wall. The image generation unit maps the three-dimensional structure in the atria and ventricles of the heart indicated in the three-dimensional structure information on the developed image by a projection of expressing the three-dimensional structure with saturation and lightness.

What is claimed is: 
     
       1. An image processing device comprising:
 an information input unit comprising a communications interface that receives as an input three-dimensional structure information indicating a three-dimensional structure of a heart; and 
 an image generation unit comprising a processor that develops an inner wall of atria and ventricles of the heart indicated by the three-dimensional structure information into a two-dimensional image based on an equal-area projection and generates a developed image interrupted by dividing the two-dimensional image into a front wall, a rear wall, a left wall, and a right wall of the inner wall, 
 wherein the processor of the image generation unit maps the three-dimensional structure in the atria and ventricles of the heart indicated in the three-dimensional structure information on the developed image by a projection of expressing the three-dimensional structure with saturation and lightness. 
 
     
     
       2. The image processing device of  claim 1 , wherein
 the processor of the image generation unit is capable of switching presence/absence of mapping of the three-dimensional structure corresponding to a papillary muscle on the developed image. 
 
     
     
       3. The image processing device of  claim 1 , wherein
 the processor of the image generation unit is capable of switching presence/absence of mapping of the three-dimensional structure corresponding to a chorda tendinea on the developed image. 
 
     
     
       4. The image processing device of  claim 1 , wherein
 the communications interface of the information input unit receives as an input time-series three-dimensional structure information including diastole and systole of the heart, and 
 the processor of the image generation unit generates the developed image for each of the diastole and the systole based on the time-series three-dimensional structure information. 
 
     
     
       5. The image processing device of  claim 4 , wherein
 the processor of the image generation unit maps a region of interest in the heart on the developed image and corrects a position of the region of interest based on the developed image during the diastole and the developed image during the systole, and the region of interest is an infarct region of the heart. 
 
     
     
       6. The image processing device of  claim 1 , wherein
 the processor of the image generation unit obtains a wall thickness of the inner wall based on the three-dimensional structure information, and maps the obtained wall thickness on the developed image. 
 
     
     
       7. The image processing device of  claim 1 , wherein
 the communications interface of the information input unit further receives as an input electrocardiogram information indicating an electrocardiogram of the inner wall, and 
 the processor of the image generation unit maps the electrocardiogram of the inner wall on the developed image based on the electrocardiogram information. 
 
     
     
       8. The image processing device of  claim 1 , wherein
 the processor of the image generation unit acquires a wall motion state of the inner wall based on the three-dimensional structure information, and maps the acquired wall motion state on the developed image. 
 
     
     
       9. The image processing device of  claim 8 , wherein
 the communications interface of the information input unit further receives as an input electrocardiogram information indicating an electrocardiogram of the inner wall, and 
 the processor of the image generation unit identifies a region where the wall motion state of the inner wall and the electrocardiogram of the inner wall satisfy predetermined conditions, and maps the identified region on the developed image. 
 
     
     
       10. The image processing device of  claim 1 , further comprising:
 an operation input unit comprising a user interface that receives an operation input, 
 wherein the processor of the image generation unit displays the generated developed image on a display unit, and displays a marker indicating a position given in instruction by the operation input on the developed image in a superimposed manner when the user interface of the operation input unit receives the operation input giving an instruction on the position on the developed image displayed on the display unit. 
 
     
     
       11. The image processing device of  claim 1 , further comprising
 an operation input unit comprising a user interface that receives an operation input, 
 wherein the processor of the image generation unit displays the generated developed image on a display unit, obtains a wall thickness of the inner wall based on the three-dimensional structure information, and displays the wall thickness at a position given in instruction by the operation input on the display unit when the user interface of the operation input unit receives the operation input giving an instruction on the position on the developed image displayed on the display unit. 
 
     
     
       12. An image processing method, executed using an image processing device, the method comprising:
 receiving, via a processor, as an input three-dimensional structure information indicating a three-dimensional structure of a heart; 
 developing, via the processor, an inner wall of atria and ventricles of the heart indicated by the three-dimensional structure information into a two-dimensional image based on an equal-area projection; 
 generating, via the processor, a developed image interrupted by dividing the two-dimensional image into a front wall, a rear wall, a left wall, and a right wall of the inner wall; and 
 mapping, via the processor, the three-dimensional structure in the atria and ventricles of the heart indicated in the three-dimensional structure information on the developed image by a projection of expressing the three-dimensional structure with saturation and lightness. 
 
     
     
       13. The image processing method of  claim 12 , wherein mapping the three-dimensional structure further comprises:
 switching, via the processor, between a presence and an absence of a papillary muscle mapped on the developed image. 
 
     
     
       14. The image processing method of  claim 12 , wherein mapping the three-dimensional structure further comprises:
 switching, via the processor, between a presence and an absence of a chorda tendinea mapped on the developed image. 
 
     
     
       15. The image processing method of  claim 12 , further comprising:
 receiving, via the processor, as an input time-series three-dimensional structure information including diastole and systole of the heart; and 
 generating, via the processor, the developed image for each of the diastole and the systole based on the time-series three-dimensional structure information. 
 
     
     
       16. The image processing method of  claim 15 , further comprising:
 mapping, via the processor, a region of interest in the heart on the developed image; and 
 correcting, via the processor, a position of the region of interest based on the developed image during the diastole and the developed image during the systole, wherein the region of interest is an infarct region of the heart. 
 
     
     
       17. The image processing method of  claim 16 , further comprising:
 obtaining, via the processor, a wall thickness of the inner wall based on the three-dimensional structure information; and 
 mapping, via the processor, the obtained wall thickness on the developed image. 
 
     
     
       18. The image processing method of  claim 17 , further comprising:
 receiving, via the processor, as an input electrocardiogram information indicating an electrocardiogram of the inner wall; and 
 mapping, via the processor, the electrocardiogram of the inner wall on the developed image based on the electrocardiogram information. 
 
     
     
       19. The image processing method of  claim 17 , further comprising:
 acquiring, via the processor, a wall motion state of the inner wall based on the three-dimensional structure information; and 
 mapping, via the processor, the acquired wall motion state on the developed image. 
 
     
     
       20. A non-transitory computer-readable medium having computer executable instructions stored thereon that, when executed by a processor, cause the processor to:
 receive, as an input, three-dimensional structure information indicating a three-dimensional structure of a heart; 
 develop an inner wall of atria and ventricles of the heart indicated by the three-dimensional structure information into a two-dimensional image based on an equal-area projection and generating a developed image interrupted by dividing the two-dimensional image into a front wall, a rear wall, a left wall, and a right wall of the inner wall; and 
 map the three-dimensional structure in the atria and ventricles of the heart indicated in the three-dimensional structure information on the developed image by a projection of expressing the three-dimensional structure with saturation and lightness.